Abidjan--The ruling coalition in Ivory Coast on Saturday nominated incumbent President Alassane Ouattara for re-election in October's presidential poll as the country seeks to move on from years of political turmoil.

Ouattara's official nomination was announced by former Ivorian head of state Henri Konan Bedie, with Gabon's President Ali Bongo Ondimba also attending a grand ceremony held in the country's biggest stadium in Abidjan.

The 73-year-old Ouattara, decked out in a white hat and shirt, made a grand entrance into the 35,000-seat stadium riding in a convertible.

He was greeted by the crowd shouting "ADO president!" -- a reference to his initials as Alassane Dramane Ouattara.

The Ivorian leader had won the backing of his Rally of Republicans (RDR) party at a congress in March. Its ally the Democratic Party decided not to field its own candidate to help ensure Ouattara's victory.

Faced with a divided opposition, the former vice-president of the International Monetary Fund is the favourite in the presidential race.

Ouattara took office in 2011 after a bloody post-election crisis sparked by former president Laurent Gbagbo's refusal to hand over power, claiming electoral fraud in the 2010 presidential vote. More than 3,000 people lost their lives in the ensuing unrest.

The pro-Gbagbo Ivorian Popular Front (FPI) party on Saturday said it would put forward a candidate to run against Ouattara.

"We will hold our congress in a few weeks and we will have a candidate to face Mr Ouattara," the main opposition party's head Pascal Affi N'Guessan said at a meeting in the central city of Bouake.